Explosive.



ra n s'ra'rns CARL WESTER, 0F HELSINGBORG; SWEDEN.

EXPLOSIVE.

No Drawing.

T 0 all whom it may concern:

Be it known that I, CARL 'WEsTnR, a citizen of the Kingdom of Sweden,residing at 160 Dronning Gatan, in the city of Helsingborg, in theKingdom of Sweden. have invented a certain new and useful Explosive, ofwhich the following is a specification.

This invention has reference to a new and improved explosive of theperchlorate type of explosive and pertains particularly to that classwhich contains perchlorate of mmonium as the most effective component. Chas been well known for a long time that perchlorate of ammoniumpossesses great explosive force liut spontaneous explosions and thepoisonous gases forming during the explosion and other deficienciesprevented its application in practice. It has been the aim to overcomethe described deficiencies and to produce explosives with perchlorate ofammonium that may be safely transported and are not subject tospontaneous explosion during the storage of same. This has. beenaccomplished'in the present invention by compounding with theperchlorate ofyammonium certain substances which render the novelexplosive perfectly safe during transportation and storage and thus thenovel explosive constitutes a so called safety explosive which is noteasily decomposed nor does it give ofi any poisonous gases during theexplosion and withstands atmospheric influences because it is notaffected by heat,

cold or moisture. Likewise shocks, blows or a fall such as occur durintransportation or incidentally will not affect the explosive.Furthermore comparative tests have shown that the novel explosive ismore effective than other explosives pertaining to this class and itsmanufacture is considerably cheaper than that of similar explosives sothat the present explosive is a general commodity.

In preparing so called safety explosives of the perchlorate of ammoniumtype great care must be taken in the selection of proper constituents tobe admixed therewith. Likewise great changes in the percentages are notdesirable'in a'formula because the character and properties of anexplosive are.

easily changed thereby and specific components and their relativeproportion as to quantity impart desirable. or undesirable qualities.

Specification of Letters Patent. Patented luay 23, 1911 Applicationfiled May 3, 1910. Serial No. 559,096.

The present invention 'has for its object to produce a so called safetyexplosive of the perchlorate of ammonium type which may be safelytransported, and used in a more effective manner at a reduced cost. Thishas been attained by compounding perchlorate of ammonium, ClO,(NH,),withnitrate of sodium, NO Na,known as Chile sa'ltpeter, dinitrobenzene, CHANOQ and fine sawdust or wood meal which latter may be replaced to asmall extent by a little Vaseline.

The proportions in which the above enumerated components are compoundedare substantially as follows:

35% ammonium perchlorate (NH|)GIO4 45% nitrate of soda (Chile saltpeter)NaNO 10% dinitrobenzene C5H4(NO);

10 sawdust.

If it is desired to use a little Vaseline then 2% may be added and theproportion of sawdust is then correspondingly reduced to 8%.

The proportions of the ingredients above 1 mentionedproduce an explosivefor rather general application. However the nature of the differentkinds of rocks and deposits in quarries'and mines is different andtherefore the relative proportions of the several ingredients may bevaried Within reasonable limits according to the special application forwhich the explosive is desired. Sometimes it is required toblast a rockto pieces in a rather destructive manner, and in other cases blocks ofrock should solely be separated and moved forward without anydestructive efiect so that the separated blocks may be split into plateslike the slabs of marble. In the first instance a high explosive effectis necessary and in the second a rather retarded and slower effect isdesirable. Variations in the percentages of the different componentswithin reasonable limits and the mode of application render the novelexplosive useful under the described difl'erent conditions andrequirements.

I claim as my invention:

1. An explosive comprising substantially about 35% of perchlorate ofammonium,

benzene, and 810% of fine sawdust.

about 35% of perchlorate of ammonium,

45% of nitrate of sodium, 10% of dinitro- 2. An explosive comprisingsubstantially 45% of hitrate of sodium, 10% of dinitro posjtioneniadapted to be Worked up into benzene 0f fine sawdust, and 2% ofca1-tI'idg-Es;' 10

Vaseline. I In Witness whereof I have hereunto set my 3. A safetyexplosive comprising essenhand in the presence of two witnesses. 5tially about 35% of perchlorate of'am- CARL \VESTER.

monium, 45% of nitrate of sodium, 10% of Witnesses: dinitrobenzene, 8%of fine sawdust and 2% TH. ERIGSON,

of Vaseline, existing in form of a, dry com- REINOLD TOLL.

